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Finding the Fourth Proportional to 551,154.44, 760,543.54 and 321,731.64

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Solution

The fourth proportional to 551,154.44, 760,543.54 and 321,731.64 is: 443,960.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,154.44 : 760,543.54 = 321,731.64 : x
  2. Step 2: Convert to fraction form
    551,154.44/760,543.54 = 321,731.64/x
  3. Step 3: Cross multiply
    551,154.44x = 760,543.54 × 321,731.64
  4. Step 4: Simplify right side
    551,154.44x = 244,690,920,415.61
  5. Step 5: Solve for x
    x = 244,690,920,415.61/551,154.44
  6. Step 6: Final answer
    x = 443,960.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.